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World's Finest DI

The world’s finest passive direct box, the Radial JDI, brings unprecedented sonic transparency and simplicity – allowing the artist to be free of hassle and focused in on their music.

Jensen Transformer equipped passive DI

Eliminates hum and buzz from ground loops

Virtually zero phase & harmonic distortion

Exceptional signal handling and noise rejection

Pure Sound of the Instrument

The Radial JDI is a passive direct box designed to handle extreme signal levels without distortion of any kind. At the heart, the Radial JDI employs the world class Jensen JT-DB-EPC audio transformer delivering a smooth, warm sounding Bessel curve, reminiscent of the finest vintage gear. Ruler flat from 10Hz to 40kHz and with virtually zero phase deviation, the JDI delivers the natural, pure sound of the instrument without artifact. By its no-power passive design, the Radial JDI performs both high-to-low impedance conversion and signal balancing over a magnetic bridge that passes signal while rejecting stray DC voltage. This makes the JDI particularly adept at eliminating hum and buzz caused by ground loops.